The specific performance specs for this high end Intel CPU are still unconfirmed, but some benchmarks are starting to appear.The Core i5-7600K 4-Core 3.8GHz is a high-end CPU based on the 14nm, Kaby Lake micro architecture.

It offers 4 physical cores (8 logical), initially clocked at 3.8GHz, which may go up and 8MB of L3 Cache. Among its many features, HyperThreading, Turbo Boost 2.0 and Virtualization are activated and the processor has its multiplier unlocked.

This CPU is likely to offer exceptional computational performance and will not be the bottleneck in any modern gaming PC. It will be able to play all modern games comfortably on high/ultra graphics performance without being a hindrance to the accompanying GPU.

If there both the same price go for this one for it's slightly higher clock speed and higher oc. However if you can get a used 6600k for a bit cheaper might as well go for that as the difference is minor around %5.

I believe the Kaby Lake CPUs will be released on January 5th not 30th. Plus, this was benchmarked and confirmed that it's around 9% faster than the 6600k so it's strange how the system reqs on the right are the same as the 6600k.